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EP 3 994 842 A2

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(88) Date of publication A3: 18.02.2021 (43) Date of publication: 11.05.2022 Bulletin 2022/19 (21) Application number: 20806234.9 (22) Date of filing: 13.05.2020

(51) International Patent Classification (IPC):  H04L 9/32(2006.01) H04L 9/14(2006.01) H04L 9/08(2006.01) H04L 29/06(2006.01) (52) Cooperative Patent Classification (CPC): H04L 9/14; H04L 2209/84; H04L 2209/42; H04L 9/3265; H04L 9/3268; H04L 9/0631; H04L 9/3252; H04L 9/002; H04L 2209/24; H04L 9/005; H04L 9/006; H04L 9/0825 (86) International application number: PCT/IB2020/000691 (87) International publication number: WO 2020/229895 (19.11.2020 Gazette 2020/47)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (71) Applicants: LG Electronics Inc. SEOUL 07336 (KR) University of São Paulo 05508-220 São Paulo (BR)

(72) Inventors: OGAWA, Henrique, S. 08717-620 São Paulo (BR) LUTHER, Thomas, E. Sunnyvale, CA 94087 (US) RICARDINI, Jefferson, E. 06826-420 São Paulo (BR) SIMPLICIO, Marcos, A. Jr. 05508-010 São Paulo (BR) CUNHA, Helmiton 53290-230 Olinda, Pernambuco (BR) PATIL, Harsh, Kupwade Fremont, CA 94536 (US) (74) Representative: Katérle, Axel  Wuesthoff & Wuesthoff Patentanwälte PartG mbB Schweigerstraße 2 81541 München 81541 München (DE)